组合超声波辅助葛根黄酮与多糖同时提取技术研究

Study on the simultaneous extraction of flavonoids and polysaccharide assisted by combined ultrasound from Kudzu Root

摘要: 为提高葛根资源的综合开发和利用效率,采用组合超声辅助提取技术同时提取葛根黄酮与多糖。结果表明,组合超声波辅助提取法优于单一频率超声波辅助法,且顺序超声组合优于同时超声组合,在超声波总功率600W、提取时间20min、液料比30m L/g、温度50℃,超声频率15k Hz和20k Hz时的顺序组合时,葛根黄酮和多糖同时得率(8.72%和2.18%)比20k Hz单一频率超声辅助提取法(7.92%和1.91%)分别提高10.10%和14.14%。

Abstract: In order to improve the comprehensive development and utilization of kudzu root resources,the simultaneous extraction of flavonoid and polysaccharide assisted in combination ultrasonic field from kudzu root were investigated.The results showed that extraction methods assisted by combined ultrasound were better than that assisted by the single frequency ultrasound. And the sequential combined ultrasound was superior to simultaneous combined ultrasound in extraction. Under the optimum condition of the total ultrasonic power 600 W,extraction time 20 min,the ratio of liquid to solid 30 m L / g,temperature 50℃,sequential combined ultrasonic frequency of 15 k Hz and 20 k Hz,the flavonoids and polysaccharide extraction rate reached 8.72% and 2.18% from7.92% and 1.91%,which increased by 10.10% and 14.14% respectively compared with 20 k Hz single frequency ultrasound assisted extraction.